This is a sample question for my human phys. test tomorrow. 

Significantly decreasing the extracellular concentration of K+ would do which of the following?
a) Increase the transport of Na+ out of the cell by the Na+/K+ pump
b) Decrease the negativity of the membrane potential
c) Increase the conductance of the membrane to K+ (gK)
d) Increase the driving force on Na+
e) Decrease the negativity of the equilibrium potential for K+

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